Need An Oil Breather Suggestion Options

[johnnie5]

I mounted my breather on the rear wall of my engine compartment. I stood it off a bit with a couple of nuts for clearance purposes, so the engine lid would close with the rain tray still in place.

[bandjoey]

Anyone with pictures of drilled out valve covers showing how and where you mounted the pipe for the hose?

[stephenaki]

I mounted my breather on the rear wall of my engine compartment. I stood it off a bit with a couple of nuts for clearance purposes, so the engine lid would close with the rain tray still in place.

Nice, I like it, where'd you get the breather?

[johnnie5]

Nice, I like it, where'd you get the breather?

CB Performance...

http://www.cbperformance.com/catalog.asp?ProductID=238

[Gint]

Anyone with pictures of drilled out valve covers showing how and where you mounted the pipe for the hose?

Pretty sure all of the heads have the boss at the factory location. Just drill it there at an angle just like factory. That's what I did anyway. Working fine.

[jschaible]

Why is it important to have 2 vents to the rocker covers? As long as the the breather box is mounted high enough so that the oil will drain back, why not just have one pipe to the main oil fill? Vent vapors up to the box while running, and return the condensed oil later!

[Jeff Hail]

Why would you want to move it to the back wall?
By head vents, are you talking about vented valve covers?

Its less obtrusive when located at the back.

(IMG:http://www.tangerineracing.com/images/EnginePics/BreatherCanInstalled.jpg)

On some engines, there are 1/2" dia. vent tubes on the heads, next to the intake ports.
The stock location is the best place to add them if your engine doesn't already have them, but it is a bit of work, especially when done with the engine installed.
Sometimes vents are added to the valve covers but they are below the tin so hose routing is a challenge.

Doesn't Chris make it simple to come to an easy and reasonable solution?

[VaccaRabite]

Why is it important to have 2 vents to the rocker covers? As long as the the breather box is mounted high enough so that the oil will drain back, why not just have one pipe to the main oil fill? Vent vapors up to the box while running, and return the condensed oil later!

What happens is the rocker area of the heads gets pressurized, sometimes enough to unseat the cover just enough to give you a leak. That area is a bitch enough to keep sealed anyway. On a standard oil pump, it may not be as much of a problem, but the factory started venting these heads for a reason.... For a HD pump, you need to do this if it was not done factory.

Chris's solution is way pretty, but the EMPI box is way cheaper.

Zach

[ottox914]

The CFR system is on the turbo 914, and quite simply, it is the best tool for the job. I considered the CB system, and made my own system with a bike bottle and some 3M pads inside, it kinda worked, but once I got the CFR breather, problem solved. Yes, its more than $50 bucks, and if thats all you have/want to spend, there are probably cheaper solutions, but there is not a better solution.

http://forums.aircooledtechnology.com/show...2819&page=4

Linky to some install photos.

[SLITS]

Heads were not vented on '75-'76 engines for tighter emissions control.

You ought to spend some time in the library reading and you may find the reason crankcases / heads are vented, but since you haven't ....

1.) The spinning crankshaft assembly creates a hell of a storm inside the engine and whips up oil, entrains air with a wet sump system. For years, crank scrapers and windage screens have been used to quell the storm.

2.) Rings do not seal perfectly. There is always some blowby present pressurizing the case.

3.) Adding the Empi or whatever type breather or just a can has no provision to drain the oil back to the case where it belongs.

4.) The system that Chris makes appears to be somewhat modeled after a dry sump tank .... inlet at top, probably with baffles and a screen to break the air entrained in the oil out so that it drops to the bottom of the tank and dribbles back into the case.

5.) You can drill your heads in the car ... use heavy grease on the drill and tap and it will capture the shards. You can use a threaded hose barb in this manner.

5.5.) Vacuum to pull the oil vapors / droplets into the engine to be burned can be obtained by tapping the top or bottom of the carb air cleaner and routing the vent hoses to the air cleaners.

6.) If you decide to vent the valve covers, the vent mu be in the upper portion of the cover as the rocker box can run about 1/2 full of oil. You braze the fittings onto the cover unless you can find a bulkhead fitting that will work.

[ChrisFoley]

5.5.) Vacuum to pull the oil vapors / droplets into the engine to be burned can be obtained by tapping the top or bottom of the carb air cleaner and routing the vent hoses to the air cleaners.

Even better would be to vent to a breather can that separates the oil droplets first, then has the remaining vapors sucked through the carbs. This would be strictly legal, as Cap'n Krusty likes to remind us of.
The Tangerine Breather is available with a fitting on top instead of the K&N filter so this can be implemented.

(IMG:http://www.tangerineracing.com/images/EnginePics/BreatherOption02.jpg)

[jschaible]

The CFR system is on the turbo 914, and quite simply, it is the best tool for the job. I considered the CB system, and made my own system with a bike bottle and some 3M pads inside, it kinda worked, but once I got the CFR breather, problem solved. Yes, its more than $50 bucks, and if thats all you have/want to spend, there are probably cheaper solutions, but there is not a better solution.

http://forums.aircooledtechnology.com/show...2819&page=4

Linky to some install photos.

ottox914 - how can I access your CFR system post on thre air cooled site? I registered, but the system says I don't have permission to view even though I am signed in!

[ChrisFoley]

ottox914 - how can I access your CFR system post on thre air cooled site? I registered, but the system says I don't have permission to view even though I am signed in!

Jake runs a tight ship over there. You will have to wait for him to set up permissions for your account.

[mbjarts]

I have the VW "bugpack" and it blows oil all over my engine. The problem is that all three inlets (both heads and the hose from the oil filler) seem to be blowin oil into the little box and it sprays all over the bay. It doesnt seem to realease the air and/or pressure. Is it possible that I have too much oil pressure?

[r_towle]

I have the VW "bugpack" and it blows oil all over my engine. The problem is that all three inlets (both heads and the hose from the oil filler) seem to be blowin oil into the little box and it sprays all over the bay. It doesnt seem to realease the air and/or pressure. Is it possible that I have too much oil pressure?

Possible.

Please post a pic of the setup, maybe its not hooked up right.
Did you drill out the PCV valve so it allows the oil to drain into the oil filler?

Rich

[mbjarts]

[/quote]
Possible.

Please post a pic of the setup, maybe its not hooked up right.
Did you drill out the PCV valve so it allows the oil to drain into the oil filler?

Rich
[/quote]


I actually put a "new" pvc valve in - I'll drill out and try. Thanks

[Kargeek]

Cut down fan motor bracket and a VW aftermarket breather...I milled off the top ribs...

[r_towle]

[quote name='mbjarts' date='Nov 23 2009, 01:42 PM' post='1241933']
[/quote]
Possible.

Please post a pic of the setup, maybe its not hooked up right.
Did you drill out the PCV valve so it allows the oil to drain into the oil filler?

Rich
[/quote]


I actually put a "new" pvc valve in - I'll drill out and try. Thanks
[/quote]
This could be your problem.

The PCV valve is a one way valve to let pressure out.
Its not designed to let anything in.
With the aftermarket oil breather, you need to be able to drain the oil back...so either you drill a new hole in the oil filler box and add a fitting, or you drill out the PCV valve so it is just a hole that allows both the gases to escape and the oil to drain back in.

You may have no place for the oil to drain right now...that is why its blowing all over the enginebay.

Rich

[r_towle]

So,
I am about to put the CB Performance one in.
Anyone have more pics of where to mount it?
One IC on the back firewall...
One IC on the Fan..that is trick
On IC on the front firewall, but I cant see how its mounted.
I dont what to take off the backpad for this...to much work

Rich